delete outdated readme message

Author: joemphilips

bindings/README.md

@@ -2,21 +2,3 @@
 
 Currently, it only supports C#, other languages are untested.
 
-## General strategy
-
-
-## Type interoperability
-
-Some types can not pass FFI boundary directly, so it has to be converted to FFI-safe type.
-The famous example of this is that array has to be passed as a pair of two items.
-
-1. pointer to the first element of the array.
-2. length of the array.
-
-For other rust-lightning and rust-bitcoin types, the conversion could be done in several ways.
-Here are the conversion tables for those types.
-
-1. tuple ... analogous plain struct.
-1. `Transaction` ... ``
-
-